Centrifugal pan for mineral fiber production equipment and method for determining hole position on centrifugal pan

Abstract

The invention provides a centrifugal pan for mineral fiber production equipment, the centrifugal pan is provided with a side wall configured as a conical surface, the side wall is provided with a plurality of through holes, the through holes are configured into at least two rows along the circumferential direction of the side wall, and at most 30 through holes in two adjacent rows of through holes are aligned in the generatrix direction of the side wall. The invention further provides a method for determining the positions of the through holes in the centrifugal disc so as to reduce or eliminate alignment of the through holes. According to the centrifugal disc, the alignment condition between the adjacent through holes with different diameters in the generatrix direction in the punching area of the centrifugal disc can be reduced or eliminated, so that the stress concentration of the through holes is reduced, and the service life of the centrifugal disc is prolonged.

Description

Technical Field

[0001] The present invention relates to mineral fiber production equipment, and in particular to a centrifugal disk for mineral fiber production equipment and a method for determining the positions of holes thereon. Background Art

[0002] A common method for producing glass fibers or mineral fibers for thermal insulation applications is a combination of centrifugal drawing and air drawing.

[0003] The equipment used for centrifugal drawing includes a centrifugal disk 1, as Figure 1 shown, whose side wall 5 has an inclination angle γ relative to the vertical direction, whereby the side wall encloses a conical surface, called a lateral belt cylinder. The side wall 5 is provided with a plurality of through holes 9, and the axes of the through holes face the axis of the centrifugal disk. The through holes 9 are arranged in rows along the circumferential direction of the side wall 5, and these rows are arranged along the generatrix direction of the side wall, with reference to Figure 2 . The centrifugal disk 1 has a fixed flange 6 and a rotating shaft hole 8, and a rotating shaft (not shown in the figure) passes through the shaft hole 8 and drives the centrifugal disk 1 to rotate.

[0004] During the fiber production process, the centrifugal disk usually rotates at a speed of about 1500 to 3000 revolutions per minute. Under the action of centrifugal force, glass or molten rock is pushed outwards and passes through the holes, thereby forming fibers, which are then pulled downwards towards the bottom and drawn by a hot gas jet.

[0005] Generally, the through holes 9 on the side wall 5 form a belt with through holes of different diameters, with reference to Figure 2 . Generally, if the diameters of the through holes in two adjacent rows are the same, the positions of the through holes in the adjacent rows will be arranged with a circumferential offset to avoid the alignment of the through holes in the generatrix direction of the side wall. Such alignment will cause stress concentration and fatigue failure. However, for adjacent rows between two belts, since the diameters of the through holes are different, a simple axial offset arrangement cannot avoid the alignment of the through holes in the adjacent rows in the generatrix direction. In this case, stress concentration cannot be avoided. Summary of the Invention

[0006] The object of the present invention is to avoid or reduce stress concentration caused by the alignment of the generatrix directions of the through holes.

[0007] To this end, according to one aspect of the present invention, a centrifugal disk for mineral fiber production equipment has a side wall configured as a conical surface, and the side wall is provided with a plurality of through holes, and the through holes are configured in at least two rows along the circumferential direction of the side wall, wherein, among adjacent two rows of the through holes, at most 30 of the through holes are aligned in the generatrix direction of the side wall.

[0008] Wherein, in the same row, the pitch between adjacent through holes is at least 150% of the diameter of the through hole and less than or equal to 250% of the diameter of the through hole.

[0009] Wherein, the line spacing between the two adjacent rows is 140% to 200% of the diameter of the through hole.

[0010] Wherein, in the punching area on the side wall, the distribution density of the through holes is 19 to 93 through holes per square centimeter.

[0011] According to another aspect of the present invention, a method for determining the position of holes, used to determine the position of the through holes on the centrifugal disc, includes the following steps:

[0012] Step 100, obtain the line spacing between the adjacent first row of through holes and the second row of through holes, the first through hole diameter of the first row of through holes, and the second through hole diameter of the second row of through holes, wherein the first through hole diameter is greater than the second through hole diameter;

[0013] Step 200, determine the circumferential deviation between the first starting position of the first row of through holes and the second starting position of the second row of through holes;

[0014] Step 300, according to the following formula, determine the minimum hole spacing between the first row of through holes and the second row of through holes,

[0015]

[0016] Wherein, i refers to the i-th through hole from the first starting position in the first row of through holes, with an initial value of 1, j refers to the j-th through hole from the second starting position in the second row of through holes, with an initial value of 1, p1 refers to the first pitch of the first row of through holes, with an initial value of 1.5d1, d1 is the first through hole diameter, p2 refers to the second pitch of the second row of through holes, with an initial value of 1.5d2, d2 is the second through hole diameter, p off refers to the circumferential deviation, with an initial value of zero, and D is the line spacing;

[0017] Step 400, keep p1 and p2 unchanged, increase p within the following range off , and for each p off value, repeat step 300, so as to obtain the corresponding minimum hole spacing T min set {T min},

[0018] 0 ≤ p off ≤ min(p1, p2) (2)

[0019] Step 500, if there exists T min greater than the line spacing, obtain the maximum value max({T min}) in the set {T min}), according to the circumferential deviation p corresponding to the maximum value off Determine the through-hole positions of the first row and the second row according to the first pitch p1 and the second pitch p2

[0020] The method for determining the hole positions further includes

[0021] Step 600, if T min All equal the row pitch, then increase p1 and p2 within the following range, and for each value of p1 and p2, repeat steps 300 and 400 to obtain a set {T min} of sets T m,n ={{T min} m,n}, where m refers to the m-th value of p1 and n refers to the n-th value of p2

[0022] 1.5d1 ≤ p1 ≤ 2.5d1, 1.5d2 ≤ p2 ≤ 2.5d2

[0023] Step 700, determine the positions of the through-holes in the first row of through-holes and the second row of through-holes according to the set T m,n ={{T min} m,n}

[0024] Among them, step 700 further includes

[0025] Step 710, when the minimum hole pitch T m,n in the set T min is greater than the row pitch, then calculate the total number of holes corresponding to the T min according to the first diameter d1, the second diameter d2, the first pitch p1, the second pitch p2, the circumference L1 of the first row and the circumference L2 of the second row according to the following formula

[0026]

[0027] Step 720, determine the positions of the through-holes according to the first diameter d1, the second diameter d2, the first pitch p1, the second pitch p2 and the circumferential deviation p corresponding to the maximum value of the total number of holes N off

[0028] Among them, step 700 further includes

[0029] Step 740, when the minimum hole pitch T m,n in the set T min ​If they are all equal to the line pitch, then select the circumferential deviation, the first pitch, and the second pitch corresponding to the least number of the through holes aligned in the direction of the bus bar, and determine the positions of the through holes according to the circumferential deviation, the first pitch, and the second pitch.

[0030] Wherein, the step 740 further includes: removing some of the through holes with smaller diameters among the through holes in two adjacent rows aligned in the direction of the bus bar, so that the number of the aligned through holes does not exceed 30.

[0031] Further, in the step 400 or 600, p1, p2, and p are successively increased according to a set step value off .

[0032] According to another aspect of the present invention, a computer device includes a memory, a processor, and instructions stored on the memory and executable by the processor. When the processor executes the instructions, the steps of the foregoing method are implemented.

[0033] According to another aspect of the present invention, a manufacturing device is capable of forming through holes on a workpiece. Among them, the manufacturing device includes the foregoing computing device.

[0034] According to another aspect of the present invention, a computer-readable medium stores executable instructions thereon. Among them, the executable instructions are configured to cause a machine to execute the steps of the foregoing method when executed.

[0035] According to another aspect of the present invention, a computer program product includes computer program instructions. Among them, when the computer program instructions are executed by a processor, the steps of the foregoing method are implemented.

[0036] The present invention can eliminate or reduce the alignment between through holes with different diameters adjacent in the direction of the bus bar in the side wall punching area of the centrifugal disk, thereby reducing the stress concentration of the through holes and improving the service life of the centrifugal disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is an axial sectional view of a centrifugal disk.

[0038] Figure 2 is a view of the side with a cylinder.

[0039] Figure 3 is a partial schematic view of rows of adjacent through holes with different diameters. DETAILED DESCRIPTION OF THE INVENTION

[0040] The specific embodiments of the present invention will be described below with reference to the drawings.

[0041] In the context, unless otherwise clearly indicated, the terms "first", "second", etc. do not denote ordinal numbers, but are merely used to distinguish different features of the same type, for example, a first diameter and a second diameter, a first pitch and a second pitch. In this application, "the...th" is used to denote an ordinal number.

[0042] The term "axial direction" refers to the orientation of the geometric axis of the shape. The term "circumferential direction" refers to the direction along the circumference. The term "generatrix direction" refers to the direction of the geometric generatrix of the conical surface formed by the side walls. The "row" of the through holes refers to the circumference formed by the centers of the openings of the through holes on the outer surface of the side wall 5. The "adjacent" rows of through holes refer to the rows adjacent in the generatrix direction. Adjacent through holes refer to the through holes adjacent within the same row or the through holes adjacent to each other between adjacent rows, referring to Figure 3 ... The term "aligned" means that the center connection line of two through holes respectively in adjacent rows is consistent with the generatrix direction. Unless otherwise specified, the center or center of the circle of the through holes described in this application refers to the center or center of the circle of the opening of the through hole on the outer surface of the side wall, and the described distance is the distance on the outer surface of the side wall.

[0043] In one embodiment, a centrifugal disk 1 for a mineral fiber production device has a side wall 5 configured as a conical surface, and the side wall 5 is provided with a plurality of through holes 9. The through holes 9 are configured in at least two rows along the circumferential direction of the side wall 5. Among them, in two adjacent rows of the through holes 9, at most 30 of the through holes 9 are aligned in the generatrix direction of the side wall 5.

[0044] In the same row, the pitch is greater than or equal to 150% of the diameter of the through hole 5 and less than or equal to 250% of the diameter of the through hole 5. The pitch is the distance between the centers of two adjacent through holes in the same row, referring to Figure 3 p1 and p2 in..., which refers to the arc length between the centers of two adjacent through holes on the circumference formed by the centers of the through holes in this row.

[0045] The row spacing between two adjacent rows is 140% to 200% of the diameter of the through hole. The described row spacing is the distance between the two circumferences formed by the centers of the two rows of through holes along the generatrix direction, that is, the length of the line segment formed by the intersection points of the generatrix and the two circumferences.

[0046] In the punching area on the side wall, the distribution density of the through holes is 19 to 93 through holes per square centimeter. The punching area refers to the area on the side wall where the through holes are formed. The axial direction of each through hole faces the axis of the centrifugal disk.

[0047] The following combines with Figure 3 Describe, according to an embodiment of the present invention, a method for determining the position of holes, used to determine the position of the through holes on the aforementioned centrifugal disk, including the following steps:

[0048] Step 100, obtain the line spacing D between the adjacent first row of through-holes and the second row of through-holes, the first through-hole diameter d1 of the first row of through-holes, and the second through-hole diameter d2 of the second row of through-holes, wherein the first through-hole diameter d1 is greater than the second through-hole diameter d2.

[0049] Step 200, determine the circumferential deviation p between the first starting position of the first row of through-holes and the second starting position of the second row of through-holes. off The "starting position" refers to the position of the center of the first through-hole in a row of through-holes on the side wall. The term "first" used here represents an ordinal number. The starting position can be determined according to the specific application environment.

[0050] Refer to Figure 3 , the distance between the intersection point of the generatrix of the first starting position and the circumference where the second row of through-holes is located and the second starting and ending position is the circumferential deviation. When the first through-holes in the first row and the second row are aligned, the circumferential deviation is zero.

[0051] Step 300, determine the minimum hole spacing between the first row of through-holes and the second row of through-holes according to the following formula (1).

[0052]

[0053] Wherein, i refers to the i-th through-hole in the first row of through-holes starting from the first starting position, and the initial value is 1. j refers to the j-th through-hole in the second row of through-holes starting from the second starting position, and its initial value is 1. Here, i and j are only used as marks for the order in the mathematical sense.

[0054] p1 refers to the first pitch of the first row of through-holes, and its initial value is 1.5d1. p2 refers to the second pitch of the second row of through-holes, and its initial value is 1.5d2. p off is the circumferential deviation, and its initial value is zero. D is the line spacing.

[0055] Refer to Figure 3 , project the outer surface of the side wall onto a plane, and the circumferential deviation p between the through-hole i in the first row of through-holes and the through-hole j in the second row of through-holes closest to it ij can be calculated as follows.

[0056] p ij = [(i - 1)p1 - (-1)p2 - p off

[0057] This circumferential deviation p ij , the line spacing D and the hole spacing e ij form a right triangle, and e is calculated according to the triangle side length theorem. ij ​。The hole pitch is calculated for each hole in the first row of through holes and the second row of through holes. The hole pitch is the distance between the centers of two through holes located in adjacent rows respectively. It can be found that e ij must be greater than or equal to the row pitch D. If e ij is greater than the row pitch D, it indicates that the through holes i and j are not aligned. If e ij is equal to the row pitch D, it indicates that the through holes i and j are aligned.

[0058] Among all the e ij , the minimum value is taken to obtain T min . Since the row pitch D is set as a constant, when p1 and p2 are fixed, e ij is related to the value of p off .

[0059] Therefore, in step 400, keeping p1 and p2 unchanged, p off is increased within the following range, and for each value of p off , step 300 is repeated to obtain the corresponding minimum hole pitch T min set {T min}.

[0060] 0 ≤ p off ≤ min(p1, p2) (2)

[0061] p off can be increased according to a preset step value. For example, it can be increased successively by a fixed length, such as 1 mm, or increased successively by a fixed ratio, such as 1%.

[0062] Step 500, if there is a T min greater than the row pitch D, it indicates that by adjusting p off , at the current values of p1 and p2, the first row of through holes and the second row of through holes can be made not to be aligned.

[0063] Thus, the maximum value max({T min}) in the set {T min} of the minimum hole pitch is obtained, that is, the maximum value of the minimum hole pitch. Corresponding to this maximum value, the circumferential deviation between the first row of through holes and the second row of through holes is the largest. Therefore, according to the circumferential deviation p off corresponding to the maximum value, the first pitch p1, and the second pitch p2, the positions of the through holes in the first row and the second row are determined.

[0064] Furthermore, step 600, if all T min are equal to the row pitch, it indicates that at the current values of p1 and p2, the alignment of the through holes cannot be avoided by adjusting p off .

[0065] Accordingly, p1 and p2 are increased within the following ranges, and for each value of p1 and p2, steps 300 and 400 are repeated. For each value of p1 and p2, a set {T min} of minimum hole pitches can be obtained. Therefore, when all the values of p1 and p2 have been calculated, a set T min} of the set of minimum hole pitches can be obtained m,n ={{T min} m,n}, where m refers to the m-th value of p1, n refers to the n-th value of p2, and m and n here are only used as markers for the order in a mathematical sense.

[0066] 1.5d1 ≤ p1 ≤ 2.5d1

[0067] 1.5d2 ≤ p2 ≤ 2.5d2

[0068] p1 and p2 can be increased according to a preset step value. For example, they can be increased successively by a fixed length, such as 1 mm, or successively by a fixed ratio, such as 1%. The step values for p1 and p2 can be the same or different.

[0069] After that, in step 700, according to the set T m,n ={{T min} m,n}, the positions of the through holes in the first row and the second row of through holes are determined.

[0070] Among them, step 700 further includes:

[0071] Step 710, when the minimum hole pitch T m,n in the set T min is greater than the row pitch, that is, there is a situation where all the through holes are not aligned, then according to the first diameter d1, the second diameter d2, the first pitch p1, the second pitch p2, the perimeter L1 of the first row, and the perimeter L2 of the second row, the total number of holes corresponding to the T min is calculated according to the following formula

[0072]

[0073] Step 720, determine the positions of the through holes according to the first diameter d1, the second diameter d2, the first pitch p1, the second pitch p2, and the circumferential deviation p off corresponding to the maximum value of the total number of holes N. That is, if there are multiple schemes where all the through holes are not aligned, the scheme with the largest total number of holes is selected.

[0074] Also, in step 740, when the set T m,nThe minimum hole pitch T therein mon is equal to the line pitch, that is, there is always a situation where the through holes are aligned. Then, to determine the minimum hole pitch T mon in the case of being equal to the line pitch D, the number of aligned through holes.

[0075] Furthermore, select the case with the least number of aligned through holes, and determine the positions of the through holes according to the corresponding circumferential deviation p off , the first pitch p1, and the second pitch p2.

[0076] Furthermore, remove the through hole with the smaller diameter among the two aligned through holes, so that the number of aligned through holes does not exceed 30.

[0077] Another embodiment of the present invention provides a computer device, including a memory, a processor, and instructions stored on the memory and executable by the processor. When the processor executes the instructions, the steps of the foregoing method for determining the hole positions are implemented.

[0078] The described computing device can be a device with computing capabilities such as a computer. For example, it can be hardware or a dedicated circuit, software, firmware, logic, or any combination thereof. In some embodiments, the memory can be a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical storage device, a magnetic storage device, cloud memory, or any suitable combination thereof. The processor can be any combination of a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, etc. The general-purpose processor can be a microprocessor, or alternatively, the processor can be any ordinary processor, controller, microcontroller, or state machine. The processor can also be implemented as a combination of multiple computing devices. For example, a combination of a DSP and a microprocessor, multiple microprocessors, the combination of one or more microprocessors and a DSP core, or any other such structure.

[0079] Another embodiment of the present invention provides a manufacturing device that can form through holes on a workpiece. Among them, the manufacturing device includes the described computing device.

[0080] Another embodiment of the present invention provides a computer-readable medium, on which executable instructions are stored. Among them, the executable instructions are configured to cause a machine to execute the steps of the foregoing method for heating a glass workpiece when being executed.

[0081] A computer-readable storage medium can be a tangible device that can hold and store instructions for use by an instruction execution device. A computer-readable storage medium may be, for example—but not limited to—an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disc read-only memory (CD-ROM), a digital versatile disc (DVD), a memory stick, a floppy disk, a mechanically encoded device such as a punched card or raised structures in grooves storing instructions thereon, and any suitable combination of the foregoing. The computer-readable storage medium as used herein is not construed as being an instantaneous signal per se, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagated through a waveguide or other transmission medium (e.g., an optical pulse through an optical fiber cable), or an electrical signal transmitted through a wire.

[0082] Another embodiment of the present invention provides a computer program product, which includes computer program instructions. When the computer program instructions are executed by a processor, the steps of the foregoing method are implemented.

[0083] The computer-readable program instructions described herein can be downloaded from a computer-readable storage medium to various computing / processing devices, or downloaded to an external computer or external storage device through a network, such as the Internet, a local area network, a wide area network, and / or a wireless network. The network may include a copper transmission cable, an optical fiber transmission, a wireless transmission, a router, a firewall, a switch, a gateway computer, and / or an edge server. A network adapter or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in each computing / processing device.

[0084] Computer program instructions for performing the operations of the present disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages such as Smalltalk, Python, C++, etc., and conventional procedural programming languages such as the "C" language or similar programming languages. The computer-readable program instructions may be executed entirely on the user's computer, partially on the user's computer, executed as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider). In some embodiments, by using the state information of the computer-readable program instructions to customize an electronic circuit, such as a programmable logic circuit, a field-programmable gate array (FPGA), or a programmable logic array (PLA), the electronic circuit may execute the computer-readable program instructions.

[0085] In the above description, details of the technical solution of the present invention have been set forth. However, those skilled in the art can understand that the present invention is not limited to the specific details listed in the above embodiments, but may vary within the scope defined by the claims.

Claims

1. A centrifugal disk for a mineral fiber production device, having a side wall configured as a conical surface, the side wall being provided with a plurality of through holes, the through holes being configured in at least two rows along the circumferential direction of the side wall, characterized in that, Among two adjacent rows of the through holes, at most 30 of the through holes are aligned in the generatrix direction of the side wall.

2. The centrifugal disk for a mineral fiber production device according to claim 1, characterized in that, In the same row, the pitch between adjacent through holes is at least 150% of the diameter of the through hole and less than or equal to 250% of the diameter of the through hole.

3. The centrifugal disk for mineral fiber production equipment according to claim 1, characterized in that, The row spacing between two adjacent rows is 140% to 200% of the diameter of the through hole.

4. The centrifugal disk for a mineral fiber production device according to claim 1, characterized in that, In the drilling area on the side wall, the distribution density of the through holes is 19 to 93 through holes per square centimeter.

5. A method for determining the position of holes, used to determine the position of the through holes on the centrifugal disc according to any one of claims 1-4, comprising the following steps: Step 100, obtaining the row spacing between a first row of through holes and a second row of through holes adjacent thereto, the first through hole diameter of the first row of through holes, and the second through hole diameter of the second row of through holes, wherein the first through hole diameter is greater than the second through hole diameter; Step 200, determining the circumferential deviation between the first starting position of the first row of through holes and the second starting position of the second row of through holes; Step 300, according to the following formula, determining the minimum hole spacing between the first row of through holes and the second row of through holes, Among them, i refers to the i-th through hole in the first row of through holes starting from the first starting position, with an initial value of 1, j refers to the j-th through hole in the second row of through holes starting from the second starting position, with an initial value of 1, p1 refers to the first pitch of the first row of through holes, with an initial value of 1.5d1, d1 being the diameter of the first through hole, p2 refers to the second pitch of the second row of through holes, with an initial value of 1.5d2, d2 being the diameter of the second through hole, p off refers to the circumferential deviation, with an initial value of zero, D being the row pitch; Step 400, keep p1 and p2 unchanged, increase p within the following range off , and for each p off value, repeat Step 300 to obtain the corresponding minimum hole pitch T min set {T min}, 0 ≤ p off ≤ min(p1, p2) (2) Step 500, if there exists T min greater than the line spacing, obtain the maximum value mgx({T min}) in the set {T min}, and determine the through-hole positions of the first row and the second row according to the circumferential deviation p off corresponding to the maximum value, the first pitch p1, and the second pitch p2.

6. The method for determining the hole position according to claim 5, wherein, Further comprising: Step 600, if T min are all equal to the line spacing, then increase p1 and p2 within the following range, and for each value of p1 and p2, repeat the said Steps 300 and 400, so as to obtain a set of minimum hole spacings {T min}, and a set T m，n ={{T min}[[]] m，n}, where m refers to the m-th value of p1, and n refers to the n-th value of p2,​ 1.5d1 ≤ p1 ≤ 2.5d1, 1.5d2 ≤ p2 ≤ 2.5d2, Step 700, according to set T m，n ={{T min} m，n} to determine the positions of the through-holes in the first row of through-holes and the second row of through-holes 7. The method for determining the hole position according to claim 6, wherein, Step 700 further comprises: Step 710, when the minimum hole pitch T m，n in the set T min is greater than the row pitch, then calculate the total number of holes corresponding to the T min according to the first diameter d1, the second diameter d2, the first pitch p1, the second pitch p2, the perimeter L1 of the first row, and the perimeter L2 of the second row according to the following formula Step 720: Determine the positions of the through holes according to the first diameter d1, the second diameter d2, the first pitch p1, the second pitch p2, and the circumferential deviation p corresponding to the maximum value of the total number of holes N. off Determine the positions of the through holes.

8. The method for determining the hole position according to claim 7, wherein, Step 700 further comprises: Step 740, when the minimum hole pitch T m，n in the set T min is equal to the row pitch, select the circumferential deviation, the first pitch, and the second pitch corresponding to the least number of through holes aligned in the busbar direction, and determine the positions of the through holes according to the circumferential deviation, the first pitch, and the second pitch.

9. The method for determining the hole position according to claim 8, wherein, Step 740 further comprises: removing some of the through holes with smaller diameters among the through holes in two adjacent rows aligned in the generatrix direction, so that the number of aligned through holes does not exceed 30.

10. The method for determining the hole position according to claim 6 or 7, wherein, In the said step 400 or 600, p1, p2 and p are successively increased by a set step value off .

11. A computer device, comprising a memory, a processor, and instructions stored on the memory and executable by the processor, wherein when the processor executes the instructions, the steps of the method according to any one of claims 5-10 are implemented.

12. A manufacturing apparatus capable of forming a through hole in a workpiece, wherein, The manufacturing device comprises the computing device according to claim 11.

13. A computer-readable medium having executable instructions stored thereon, wherein, The executable instructions are configured to cause the machine to execute the steps of the method according to any one of claims 5-10 when executed.

14. A computer program product, which comprises computer program instructions, wherein when the computer program instructions are executed by a processor, the steps of the method according to any one of claims 5-10 are implemented.

Images